Séminaire du Dr Xavier ROY
TITRE:Next level 2D materials
RÉSUMÉ: Two-dimensional (2D) materials have received widespread attention in the past 15 years due to their remarkable physical, mechanical and chemical properties, and our ability to integrate them into devices. In this seminar, I will present our recent work in the development of the next generation of 2D materials. I will first discuss how magnetic order strongly couples to electrical transport and optical transitions in a new magnetic semiconductor developed in my laboratories, CrSBr. I will then introduce a family of 2D materials in which the elementary units are atomically precise clusters of atoms, called superatoms, instead of simple atomic building blocks. Due to their hierarchical structures and surface chemistry, these 2D superatomic materials exhibit emergent physical behaviors and chemical reactivities that have never been seen in other materials. I will highlight their ability to coherently transport excitons at velocities approaching the speed of sound and over macroscopic distances.
